Planning to visit us soon? Make sure you know about our Alternating License Plate System (ALPS)!  Here’s the short version – to gain entry into Yellowstone, you will need to check your license plate number:
– If the last numerical digit on your license plate is an ODD number or contains ALL LETTERS, you will be eligible to enter the park on ODD calendar days.
– If the last numerical digit on your license plate is an EVEN number, you will be eligible to enter the park on EVEN calendar days.

There are a few exceptions to this general rule, so scroll through our post and visit go.nps.gov/YELLflood for even more information and FAQ’s about the ALPS. Thank you for your understanding and patience as we navigate this unprecedented event together!